The Takex "TWIN" photoelectric beam is designed to meet the highest standards of quality and reliability for photoelectric beam intrusion detection. Unique twin beams are synchronised to work together to reinforce the range and stability in severe weather conditions. The system has a rotary optical system for easy installation and the special lens design aids in proper alignment. The TE intelligent versions additionally feature 4 different selectable frequencies which allow the stacking of beam sets to create a "wall of light"